Improvement in fruit-jars



` To all whom it ma/y comer/n: L

i scribed.

moulded in the ordinary manner.

@anni dtiiiiiw.

J. M. KITCHEN, OF BROOKLYN, NEW YORK.

Lenen nieuwe. 95,025, dem: squatter 21,1869.

' IMPROVEMENT 1N FRUIT-JARS,

` i The Schedule y referred to in these Lettera Patent and making partof the same.

Be it .known-that I; LM. W; KITCHEN, of Brooklyn, in the county ofKings, and State of New York,

have invented a new'and useful Improvement in Fruit- Jars; and I dohereby declare that the following is a full, clear, 'and exactdescription thereof, which will enable others skilled in `the art tomake and use thesame, reference being had to the accompanying drawings,forming part. ot' this specification, in which-'- Figure 1 is a sideviewof my impiovedfriiit-jar,

partly in'section,A to show its construction,

simple in "construction, `and more convenient, reliable, l and effectivein use; and

It consists in Athe spring-fastener, of peculiar conf struction, incombination with the cover 'and continuous lug ofthe jar, as willbehereinafter more fully dethe jar, which is; 'first The desired form isthen given to the interior of the mouth and neck of the jar by means ofsuitable tools.

'A represents the4 body Vof The mouth a1 is made conical or inclined, asshown. Ain fig. 1, and the neck a2, immediately' below said conicalmouth, is made vertical, as shown in g. 1, toserve as a guide, to keepthe lcover in proper position as it moves down, toits seat.

A ring of glass 'is .then formedaronnd the outside of the mouth of' thejarA, as shown iniig. 1 t0 forml a continuous lug, ai, which is thenshaped with suitabletools.

The inclined or conical mouth al of the jai-is ground with sand upon aconical Corb, so as to bring it to the exact form desired, as it isimpossible to make it perfectly true with tools. y

lB is the cover, which is recessed'or hollowed out upon its upper side,and rounded off upon its lower side or bottom, to allow` the air orgasto -morereadily escape from the jar. l

, The lower partb` of the sides 4of the cover B is made straight, toserve, in connection with the-straight surface az of the neck of thejar, as a guide to keep the cover B in proper position when moving downto its place.

The-joint between .the conical part b2, of the cover i B, and theinclined mouth a,fo'f the jar A, is made 'air-tight by the rubberpacking-ring C, which is passed around the said inclined or conical partof thesaid cover, and the middle part of which is held out by a-4 sharprin g-projectionhb, formed around the said cover, as shown in fig.`1.

The rubber packing G is kept .from getting out of` place upon the coverB by two other low'er ring-projection's, b, formed around the saidcover, the one vabove and the other below the projection b".

By this construction, as the heated contents of' the jar coolthe cover Bis forced down to its seat by the pressure of theatmosphere and of thespring D, either or both. D is a spring-fastener, which is made in aboutthe shape shown in I ig. 1, and the middle part of which rests in thebottom of the recess, in the upper side of the cover IB, as shown iniig. 1.

The ends of the spring-fastener I) are sprung over the continuous lug a,so as to hold the jar closely sealed.

If desired, the spring-fastener may be made in other forms, as, forinstance, in the form of an open ring, E,

to hook around .the neck of the jar A, below the continuous lug a, andwhich isprovided withan elastic band or strap, F, to be sprung over thetop of the cover B, to hold it' securely in place, sealing the jar.

Having thus described my invention,

` :I claim as new, and desire to secure by Letters Pat-- `The recessedcover B,- having the parallel rings b b4 between its inclined ipper andits straighulower portions, in combination with the iuclinedmouthna,vertical necks a2, continuous lugs a", rubber packing C, andspring-fastening, all arranged as herein shown and described, for thepurpose specified.

The above specification of my invention si'gned by me, this 20th day ofApril, 1869.

Witnesses:

, FRANK BLOOKLEY,

J AMES T. GRAHAM.

